Improvement in cable-stoppers



@wat @twine d meer gaat' u ETHAN RQOHENEY, OF

BOSTON, MASSACHUSETTS, AND JOHN J. EMERY f 4OFjOWLs. HEAD, MAINE.

` Letters PateatNo. 106,031, dated August 2, 1870.

IMPROVEMENT IN CABLE-STOPPERS.

l The Schedule referred to in these Letters Patentaud making part of the same;

We, ETHAN R. CHENEY, of Boston, inthe county of Suffolk andState of 3Massachusetts, and JOHN` J. EMERY, of Owls Head, iu the'county of Kuoxand State. of Maine, have invented an Improved Strainindicating Connection, Stoppelyor Holder for Vessels Cables, of which the following is a specification.

Ndturcand Objects' of thc I Mention. i This invention relates `to lche construct-ion ofthe chain-stopper, holder, orotherconnection between vessels and their anchor-chain or cable, in` such manner as not only to aiord elasticity of action in such a l connection, but so, also, as to furnish in such connectf `ing 'device and its appurtenances an indicator, which i `which will always, in cases of severe strain, indicate with comparative, if not absolute, accuracy, the amount of strain torwhich tl1e-cable is subjected.

Description of Drawing.

The accompanying drawing'illustrates my invention by a perspective view of a portion of a vessel the cable, and the elastic indicating connection.

i A ifcneral1l)esciwiption..

The vesselsdeck appears at A,v the windlass atB,

4,the cable at C.

The cable passesfrom the windlass through the movable part of the connection D, on 'its passage from the windlass to the hawse-pipe E. i E Ay pawl, F, gripes and holds the chain C to the movable part or pipe Il), and isfurnished with an eye or other means, 'by which it maybe lifted when it is de'- sired to release the cable. i

.The movable part D is guided by suitable `rods G G, or other suiicient guides, and is limited and controlled in its movement in the direction indicated by the arrow, byjmean's of suitable `springs, H, and these are confined by the standards J.

In the opposite `direction the motion of part D is limited, and the shock of its suddenly stopping against standards I is modified by means ofan elastic cushion, K. -,The movable part D is provided with a pointer or index, fL, and. upon `an adjacent fixed support its arranged a graduated plate or scale, M.

The scale and pointer may, however, be reversed or4 transposed in their order of arrangement, when preferred.

The operation of the device may be thus described: Previous to u se, a severe strain is applied tothe chain-O, arranged in part D F, as shown, by means l of a hydraulic press,'or other means, with suitable facilities for weighing the strain all the way along as it is commenced, and increased up to the maximum.

' 'The graduations are then made upon the indexplate M, and properly numbered, according to the 'number of pounds or tous ofl strain, Vsuccessivelyapplied, until the full intended working capacity ot' the cable is included inthe scale.

When the pressure or strain is relieved, the part D l" immediately recedes to the normal posit-ion, as shown y l inthe drawing, by the recoil action of the springsH. When a vessel is riding at anchor by the cable O,

'connected by the improved indicating elastic stoppery or connection, the part I)V F will move backward and' forward, as the strain upon the cable is less or more, andthe amount of strain upon the cable is thereby indicated by the pointer L upon the scale or index- .plate M.'

As the strain-upon the cable increases, the springs H are compressed, and, asit decreases, the springs H recoil and force the part D F backtoward and against the standards I; therefore the elastic cushions K are interposed, and serve to prevent injury from the meet,

ing of partD and the standard l.

Claim-.-

We claim-v- The index `and pointer L M, in combination with the traversing stopper or holder D F, and springs H, and also the arrangement of these parts,'substantially as described.

ETHAN R. CHENEY.

JOHN J. EMERY.

Witnesses:

J. D. SPAULDING, D. N. B. GOFFIN, Jr. 

